Bottle cap for heterogeneous material container

ABSTRACT

A heterogeneous material-containing bottle cap coupled to a container in a content discharge direction comprises a body assembled to a mouth of the container; a storage space coupled within the body; a receiving part having an opening; a discharge member assembled onto an upper main body mouth having the receiving part; a sealing part formed on the lower portion of the discharge member for sealing the opening of the receiving part; and an upper cap having an upper discharge member stopper is caught by and assembled onto an upper side stopper at the top of the discharge member. In such a bottle cap with the above configuration, when the upper cap is open, the discharge member ascends and the sealing part being sealed in the opening is pushed upwards such that the opening of the receiving part is open. Further, an operation part with a dolphin formed in the space is assembled onto the bottom of the receiving part. As such, when the bottle cap with the operation part is assembled onto the container neck, it stops temporarily, as opposed to the bottle neck. Under such circumstance, the body and the receiving part descend together, the dolphin of the operation part pushes the sealing part that is mounted in the opening of the receiving part upward, and heterogeneous materials kept in the storage space of the receiving part are then dropped and mixed through the opening of the receiving part.

TECHNICAL FIELD

The present invention relates to an apparatus for containing materials mode of two or more components, and more particularly, to a container closure for effectively mixing concentrate with water, concentrate with general beverage, granulation with water, or powder with water, and so an.

Also, the apparatus for containing the heterogeneous materials may be used in industrial fields such as medicine, pharmacy, cosmetics, and the like and alcoholic beverage fields so as to improve mixture of the heterogeneous materials.

BACKGROUND ART

In general, a separate space has to be provided in a container to mix powder or concentrate with liquid beverage stored in the beverage container.

A conventional structure for mixing heterogeneous materials with each other as described above is disclosed in U.S. Pat. Nos. 6,962,254, 6,230,884, and 6,854,595.

However, it is difficult to effectively overcome limitations in functional structure, mixing efficiency, barrier, responsiveness of a product line, use convenience, and the like. Thus, the conventional structure is not popularized until now.

Also, although a joint venture technology of US, Germany, and Austria and a Japanese technology are coming into the spotlight in the international society, the Japanese technology has been popularly commercialized first.

However, the Japanese technology (JP-P-2001-0018542, Jun. 19, 2001) may have a problem in which a portion for forming an opening drops into a container. As a result, it is apprehended that child swallow the dropping portion. Recently, although a container neck having a new structure for preventing a discharge device from being separated has been developed, there is a problem in which it is impossible to apply this structure to the existing container neck.

Also, although US Patent Publication No. 2003-72850 is disclosed, this invention has a limitation in which it is difficult to technically secure airtightness, workability, mold manufacture, and insertion of a content into a receiving part.

Also, there is International Patent Publication No. WO2007/79200. Here, a screw thread is formed on an outer annular part of an inner cap, and an operation part that rotates to an outer annular part to correspond to the screw thread of the inner cap cuts a sealing part within the inner cap by using a sharp portion thereof. However, the sealing for a storage space may be deteriorated, and also, it may be difficult to manufacture the portion for breaking the sealing part so as to mix the content within the storage space.

DISCLOSURE OF THE INVENTION Technical Problem

An objective of the present invention is to form a new content through a method in which, when a bottle cap containing a heterogeneous material is coupled to a container neck, an operation part is opposed to the container neck during the above-described process, and thus, the heterogeneous material contained in a storage space drops into a space within the container and then is mixed.

Another objective of the present invention is to discharge mixed contents through an upper cap that is disposed on an upper portion of the bottle cap.

Technical Solution

A bottle cap containing a different kind of material includes a main body coupled to a container neck and a receiving part having a storage space, which is coupled to the inside of the main body. Also, an opening/closing that is a path through which a content of a storage space drops is defined in a lower portion of the receiving part, and a sealing part is disposed on the opening/closing hole. Also, an operation part including a dolphin for removing the sealing part of the receiving part is coupled to the bottom of the receiving part of the bottle cap.

Also, the sealing part disposed on a lower portion of the storage space of the receiving part may block the opening/closing hole from an upper portion to a lower portion or be provided as a thin film. Thus, the content of the storage space may drop into the container through the opening/closing hole and then be mixed in a manner in which the operation part ascends upward to push the opening/closing hole upward, or the thin film is cut.

Also, a dolphin that lengthily extends is disposed on the bottom of the main body including the receiving part, and a sealing part that is partitioned by using a cutoff line is disposed to correspond to the dolphin. Thus, in this state, when the operation part moves upward, the dolphin corresponding thereto may break the sealing part that is partitioned by the cutoff line to allow the content of the storage space to drop and be mixed.

Advantageous Effects

According to the present invention, the separate storage space may be formed to be spaced apart from the main content stored in the container to store powder, granulation, or concentrate, and then, the bottle cap may be simply coupled to allow the heterogeneous material to drop and be mixed through the simple manipulation such as the coupling of the bottle cap, thereby easily simply manipulating the mixing of the heterogeneous material.

BRIEF DESCRIPTION OF THE DRAWINGS

FIGS. 1 and 2 illustrate a first embodiment of the present invention, that is, FIG. 1 is a view illustrating a state in which an operation part is coupled around a receiving part, and FIG. 2 is a longitudinal cross-sectional view illustrating a main part when the operating part removes a sealing part of the receiving part while a bottle cap is coupled to a container neck,

FIGS. 3 to 6 illustrate a second embodiment of the present invention, that is, FIG. 3 is a longitudinal cross-sectional view of a main part when a dolphin of an operation part removes a sealing part that blocks an opening/closing hole, and FIGS. 4 to 6 are longitudinal cross-sectional views illustrating a modified example of a bottle cap according to the second embodiment,

FIGS. 7 to 10 illustrate a third embodiment of the present invention, that is, FIGS. 8 and 9 are views illustrating a state in which a dolphin extending on the bottom of a main body breaks a sealing part of an operation part to form an opening/closing hole of a storage space, and FIGS. 7 and 10 are longitudinal cross-sectional views before use in FIGS. 8 and 9,

FIGS. 11 and 12 illustrate a fourth embodiment of the present invention, that is, FIG. 11 is a longitudinal cross-sectional view illustrating a state in which a sealing part disposed on a lower portion of a storage space is broken while an operation part ascends, and FIG. 12 is a longitudinal cross-sectional view illustrating a main part before use in FIG. 11,

FIGS. 13 and 14 illustrate a fifth embodiment of the present invention, that is, FIG. 14 is a longitudinal cross-sectional view illustrating a state in which a sealing part having an opening/closing hole lengthily extending on the bottom of a main body is sealed by a sealing corresponding part of the operation part, and FIG. 13 is a longitudinal cross-sectional view illustrating a main part in use.

FIGS. 15 to 18 illustrate a sixth embodiment of the present invention, that is, FIG. 15 is a longitudinal cross-sectional view of a main part in which an operation part is coupled around a storage space defined in the bottom of a main body, FIG. 16 is a view illustrating a modified example of a cutoff line of a sealing part, FIG. 17 is a longitudinal cross-sectional view of a main part in which a receiving part is disposed between the bottom of the main body and the operation part to align the bottom of the main body with the operation part, and FIG. 18 is a longitudinal cross-sectional view of a usage state in FIG. 15, and

FIGS. 19 and 20 illustrate a seventh embodiment of the present invention, that is, FIG. 19 is a longitudinal cross-sectional view of a main part in which an operation part having a sealing part that is partitioned by a cutoff line is coupled to the bottom of the main part, and FIG. 20 is a view illustrating a usage state.

MODE FOR CARRYING OUT THE INVENTION

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

A bottle cap 1 containing a different kind of material, which is coupled to a container in a discharge direction of a content includes a main body 10 coupled to a mouth of the container and a receiving part 20 having a storage space 22 and an opening/closing hole 22 within the main body 10. A discharge member 30 is coupled around a main body mouth 11 that is disposed in an upper portion of the main body 10 having the receiving part 20, and the opening/closing hole 22 of the receiving part 20 is sealed by a lower side of the discharge member 30. Also, a discharge member upper stopper 41 of an upper cap 40 is caught by and assembled around an upper end upper stopper 32 of the discharge member 30. In the bottle cap 1 having the above-described structure, when the upper cap 40 is opened, the discharge member 30 ascends, and a sealing part that seals the opening/closing hole 22 of the receiving part 20 is lifted upward to open the opening/closing hole 22 of the receiving part 20.

Also, an annular rim 53 is disposed on an upper end with respect to the bottom of the receiving part 20, and an operation part 50 on which a dolphin 52 is disposed in a space 51 defined therebetween is disposed on the bottom.

In the bottle cap 1 as described above, when the bottle cap 1 including the operation part 50 is assembled with a neck of a container 100, the operation part 50 is opposed to the neck of the container 100 and thus is stopped temporarily. In this state, the main body 10 together with the receiving part 20 descends, and the dolphin 52 of the operation part 50 pushes the sealing part 31 mounted on the opening/closing hole 22 of the receiving part 20 upward. In this state, the different kind of material stored in the storage space 21 of the receiving part 20 drops through the opening/closing hole 22 of the receiving part 20 and then is mixed.

Also, an annular rim 53 is disposed on an upper outer annular portion of the operation part 50, and the operation part 20 moves upward with respect to the receiving part 20 when the annular rim 53 contacts an upper end of the neck of the container 100. In this process, the dolphin of the operation part 50 pushes the sealing part 31 mounted on the opening/closing hole 22 of the receiving part 20 upward.

For reference, the operation part 50 is inserted into the neck of the container 100. In this state, when the bottle cap 1 rotates with respect to the neck of the container 100, while the main body 10 of the bottle cap 1 is coupled with respect to the neck of the container 100, the operation part 50 and the receiving part 20 are closely attached to each other. In this process, the dolphin 52 of the operation part 50 may push the sealing part 31 of the receiving part 20 outward to open the opening/closing hole 22.

Also, while a screw thread 12 formed on an inner wall of a side surface of the main body 10 is coupled along a container neck screw thread 101 of the container 100, the operation part 50 is fitted into and coupled around the main body 10. In this process, the annular rim 53 of the operation part 50 is closely fixed to an annular rim stopper 13 of the main body 10.

Also, when the upper cap 40 is opened, the screw thread 42 of the upper cap 40 ascends along the screw thread 15 of the main body mouth 11, and also, an upper stopper 32 ascends together with the discharge member 30. Then, when a stopper 33 of the discharge member 30 is hung on a mouth lower end 14, the upper cap 40 is separated from the upper stopper 32 of the discharge member 30 and thus is separated from the discharge member 30. As a result, the mixed contents are discharged through the discharge member 30 (see FIGS. 1 and 2).

According to another embodiment (see FIGS. 3 to 6), the bottle cap 1 includes a main body 10 coupled around the neck of the container and a receiving part 20 having a storage space 21 and an opening/closing hole 22 within the main body 10. The opening/closing hole 22 of the receiving part 20 is sealed by a sealing part 60. An operation part 50 is fitted into and assembled with the bottom of the receiving part 20. When the bottle cap 1 with which the operation part 50 is assembled is coupled around the container neck, the receiving part 20 moves downward with respect to the operation part 50, and thus, the sealing part 60 that blocks the opening/closing hole 2 of the receiving part 20 is pushed toward the receiving space 21 to allow the different kind of material stored in the storage space 21 to drop through the opening/closing hole 22.

Also, when the operation part 50 is fitted into the receiving part 20 to reduce a distance therebetween, in the state where the annular rim 53 disposed on an upper end outer annular portion of the operation part 50 contacts the upper end of the container neck, the receiving part 20 and the operation part 50 may be more coupled to each other while the main body 1 of the bottle cap 1 is coupled along the container neck.

Also, when the receiving part 20 and the operation part 50 are assembled with each other to reduce the distance therebetween, the dolphin 52 disposed on a lower portion of the operation part 50 pushes the sealing part 60 that blocks the opening/closing hole 22 of the receiving part 20 toward the storage space of the receiving part 20 to open the opening/closing hole 22 of the receiving part 20.

Also, the dolphin 52 of the operation part 50 has a space 52 thereunder, and the annular rim 53 of the operation part 50 is coupled to a portion of the main body 10 to remove the operation part 50 and the main body 10 from the container neck.

Also, the annular rim 53 of the operation part 50 is hung on an annular rim stopper 13 of the main body 10 so that the operation part 50 and the receiving part 20 are integrated with each other. Thus, in the state where the operation part 50 is coupled to the main body 10, the operation part 50 and the main body 10 are separated from the container neck.

Also, an opening/closing operation part 70 and an upper cap 80 for discharging the mixed contents may be provided in an upper portion of the bottle cap 1 including the operation part 50 (see FIG. 5 or 6).

According to further another embodiment (see FIGS. 7 to 10), a bottle cap 1 containing a different kind of material, which is coupled to a container in a discharge direction of a content includes a main body 10 coupled to a container neck and a receiving part 16 having a storage space 17 in an inner lower side of the main body 10. A dolphin 18 lengthily extending downward is disposed on an upper portion of the main body having the receiving part 16, and an operation part 50 is coupled around the receiving part 16. Also, a sealing part 54 that is openable by the dolphin 18 is disposed on a lower portion of the operation part 50. When the bottle cap 1 having the above-described configuration is coupled around a container neck, an annular rim 53 disposed on an upper outer annular portion of the operation part 50 contacts an upper end of the container neck, and simultaneously, while the main body is coupled around the container neck, the dolphin 18 pushes the sealing part 54 to break a cutoff line 55 formed on a portion of the sealing part 54, thereby opening the opening/closing hole 56.

For reference, FIGS. 7 and 10 illustrate a modified example of the operation part 50, and FIG. 8 illustrates an example of the usage state in FIG. 7. Also, FIG. 9 illustrates an example of the usage state in FIG. 10. Here, the mixed contents may be discharged by separating the bottle cap 1 or opening the opening/closing operation part 70.

According to further another embodiment (see FIGS. 11 and 12), a bottle cap 1 containing a different kind of material, which is coupled to a container in a discharge direction of a content includes a main body 10 coupled around a mouth of a container neck and a receiving part 16 having a storage space 17 within the main body 10. An operation part 50 is coupled to an outer annular portion of the receiving part 16. When the bottle cap 1 to which the operation part 50 is coupled is disposed on the container neck and then is coupled to the main body 10, a distance between the operation part 50 and the receiving part 16 is reduced while the main body 10 is coupled to the container neck. In this process, a dolphin 52 having a space 57 defined above the bottom of the operation part 50 punches a sealing part 90 that blocks the inner storage space 17 of the main body 10, and thus, the different kind of material stored in the storage space 17 drops into a space of the broken sealing part 90.

Also, an annular rim 53 is disposed on an upper outer annular portion of the operation part 50 to contact an upper end of a container neck. In this process, when the main body 10 is further coupled to the container neck, the operation part 50 may be further fitted into the main body 10 to reduce a distance therebetween. In this process, the dolphin 52 of the operation part 50 breaks the sealing part 90 disposed on the lower portion of the receiving part 16.

Also, the annular rim 53 is disposed on an upper end annular portion of the operation part, and an annular rim stopper 13 is disposed within the main body corresponding thereto. When the operation part 50 is fitted around the inner receiving part 16 of the main body 10, the annular rim of the operation part 50 is hung on the annular rim stopper 13 of the main body 10 so that the operation part 50 and the main body 10 are integrated with each other.

According to another embodiment (see FIGS. 13 and 14), a bottle cap 1 containing a different kind of material, which is coupled to a container in a discharge direction of a content includes a main body 10 coupled to a container neck. A sealing part S having an opening/closing hole 19 that lengthily extends downward is disposed on an inner lower portion of the main body 10, and a receiving part 16 having a storage space 17 is disposed on an outer annular portion of the sealing part S having the opening/closing hole 19 that lengthily extends. An operation part 50 including a sealing corresponding part 58 is coupled around the receiving part 16. When the bottle cap 1 including the operation part 50 is coupled to the container neck, the operation part 50 is opposed to an upper end of the container neck to stop. In this state, when the main body 10 is further coupled, the sealing part S of the main body gets out of the sealing corresponding part 58 of the operation part 50, and simultaneously, a different kind of material contained in the storage space 17 drops down through the opening/closing hole 19.

Also, an annular rim 53 is disposed on an upper outer annular portion of the operation part 50 to contact an upper end of the container neck, thereby being opposed to the upper end of the container neck. Thus, the operation part 50 is more fitted around the receiving part 16, and in this process, the sealing part S gets out of the sealing corresponding part 58 to open the opening/closing hole 19.

Also, a separate opening/closing operation part 70 for discharging the mixed contents is disposed on an upper end of the bottle cap 1.

According to further another embodiment (see FIGS. 15 and 20), a bottle cap 1 containing a different kind of material, which is coupled to a container in a discharge direction of a content includes a main body 10. An operation part 50 is coupled to the inside of the main body 10, and also, the operation part 50 is inserted into a container neck. When an operation part induction part G having a storage space 17 between the operation part 50 and the main body 10 is coupled to therearound, the operation part 50 is fixed to the container neck. In this state, when the main body 10 rotates, a cutoff line 55 formed on the bottom of the operation part 50 is broken to open the sealing part 54 while the main body moves downward with respect to the operation part 50. A dolphin 52 that lengthily extends is disposed on an upper portion of the sealing part 54. While the dolphin 52 contacts the bottom of the main body 10, the dolphin 52 is pushed downward to open the sealing part 54. As a result, the different kind of material stored in the storage space 17 drops into the container through the opening space of the sealing part 54.

Also, an annular rim 53 is disposed on an upper outer annular portion of the operation part 50, and also, the annular rim 53 includes the operation part induction part G between an annular rim stopper 13 of the main body 10 and the main body 10 corresponding to the operation part 50. Thus, the operation part 50 together with the main body 10 is separated from the neck of the container 100 in a manner in which the operation part 50 is fitted into the operation part induction part G (see FIGS. 15 to 18).

Also, a thin film-shaped auxiliary sealing part SS is disposed on a lower portion of the sealing part 54 to improve airtightness. As illustrated in FIG. 16, the cutoff line 55 may be reinforced by using a resin such as silicon.

Also, a separate receiving part 20 having a storage space 21 is coupled to a lower portion of the main body 10 through a protrusion or groove. As illustrated in FIG. 15, a sealing part 54 including a dolphin 52 and a sealing part 54 may be coupled to the receiving part 20 (see FIG. 17).

Also, when the main body 10 is coupled around the operation part 50, the dolphin 18 that lengthily extends on the bottom of the main body 10 may push sealing part 54 of the operation part 50 that corresponds thereto to open the opening/closing hole.

For reference, the main body 10 of the bottle cap 1 may be coupled to the container in a screw manner, one-touch manner, or adhesion manner. Also, the screw thread formed on the main body 10 may be realized through various manners.

Also, a screw thread is formed between the operation part 50 and the receiving part 20, and thus a distance between the operation part 50 and the receiving part 20 is reduced by the screw thread. However, in this case, the sealing of the storage space may be deteriorated, and thus, this method may be non-efficiency.

INDUSTRIAL APPLICABILITY

The present invention relates to a structure of an apparatus for containing heterogeneous materials, which effectively mixes concentrate with water, concentrate with general beverage, granulation with water, or powder with water, and so on, and the apparatus for containing the heterogeneous materials may be used in medicine, pharmacy, cosmetics, and industrial fields so as to improve mixture of the heterogeneous materials. 

1. A bottle cap for a heterogeneous material container, the bottle cap containing a different kind of material, which is coupled in a discharging direction of the content of a container, characterized in that the bottle cap comprises a main body assembled around a mouth of the container and a receiving part having a storage space and an opening/closing hole and coupled to the inside of the main body, a discharge member is assembled around a main body mouth that is disposed on an upper portion of the main body having the receiving part, the opening/closing hole of the receiving part is sealed by a sealing part at the lower portion of the discharge member, a discharge member upper stopper of an upper cap is caught by and assembled around an upper end upper stopper of the discharge member, and when the upper cap having the above-described structure is opened, the discharge member moves upward to lift the sealing part that seals the opening/closing hole of the receiving part to open the opening/closing hole, wherein an operation part having a dolphin in a space is assembled around the bottom of the receiving part, when the bottle cap comprising the operation part is assembled to a neck of the container, the operation part is opposed to the neck of the container to temporally stop, the main body together with the receiving part moves downward in this state, the dolphin of the operation part pushes the sealing part mounted on the opening/closing hole of the receiving part upward in this process to allow the different kind of material stored in the storage space of the receiving part to drop through the opening/closing hole of the receiving part and be mixed.
 2. The bottle cap of claim 1, wherein an annular rim is disposed on an upper outer annular portion of the operation part, the operation part moves upward with respect to the receiving part just when the annular rim contacts an upper end of the container neck, and the dolphin of the operation part is configured to push the sealing part mounted on the opening/closing hole of the receiving part in this process.
 3. The bottle cap of claim 1, wherein the operation part is inserted into the container neck, when the bottle cap rotates with respect to the container neck in this state, the operation part and the receiving part is more closely attached to each other while the main body of the bottle cap is coupled around the container neck, and the dolphin of the operation part pushes the sealing part in this process to open the opening/closing hole.
 4. A bottle cap for a heterogeneous material container, the bottle cap containing a different kind of material, which is coupled in a discharging direction of the content of a container, characterized in that the bottle cap comprises a main body coupled around a neck of the container and a receiving part having a storage space and an opening/closing hole within the main body, the opening/closing hole of the receiving part is seated by a sealing part, an operation part is assembled in a manner in which the operation part is fitted into the bottom of the receiving part, and when the bottle cap with which the operation part is assembled is coupled around the container neck, the receiving part moves downward with respect to the operation part, and the sealing part that blocks the opening/closing hole of the receiving part is pushed toward the storage space to allow the different kind of material stored in the storage space to drop through the opening/closing hole.
 5. The bottle cap of claim 4, wherein, when the operation part is fitted into the receiving part to reduce a distance therebetween, the receiving part and the operation part are more coupled to each other while the main body of the bottle cap is coupled along the container neck in the state where the annular rim disposed on an upper end annular portion of the operation part contacts an upper end of the container neck.
 6. The bottle cap of claim 4, wherein, when the receiving part and the operation part are assembled with each other to reduce the distance therebetween, the sealing part that blocks the opening/closing hole of the receiving part by the dolphin disposed on the lower portion of the operation part is pushed toward the storage space of the receiving part to open the opening/closing hole of the receiving part.
 7. The bottle cap of claim 6, wherein the dolphin of the operation part has a space thereunder.
 8. The bottle cap of claim 4, wherein an annular rim of the operation part is coupled to a portion of the main body, and the operation part together with the main body is removed from the container neck.
 9. The bottle cap of claim 8, wherein the annular rim of the operation part is hung on an annular rim stopper so that the operation part and the receiving part are integrated with each other, and the operation part is separated from the container neck in the state where the operation part is coupled to the main body.
 10. The bottle cap of claim 4, wherein an opening/closing operation part for discharging the mixed contents is disposed on an upper portion of the bottle cap comprising the operation part.
 11. A bottle cap for a heterogeneous material container, the bottle cap containing a different kind of material, which is coupled in a discharging direction of the content of a container, characterized in that the bottle cap comprises a main body coupled to a neck of the container and a receiving part having a storage space in an inner lower portion of the main body, a dolphin that lengthily extends downward is disposed on an upper portion of the main body having the receiving part, an operation part is coupled around the receiving part, a sealing part that is openable by the dolphin is disposed on a lower portion of the operation part, and when the bottle cap having the above-described configuration is coupled around the container neck, an annular rim disposed on an upper outer annular portion of the operation part contacts an upper end of the container neck, and simultaneously, the dolphin pushes the sealing part while the main body is coupled around the container neck to break a cutoff line formed on a portion of the sealing part, thereby opening the opening/closing hole.
 12. A bottle cap for a heterogeneous material container, the bottle cap containing a different kind of material, which is coupled in a discharging direction of the content of a container, characterized in that the bottle cap comprises a main body coupled to a neck of the container and a receiving part having a storage space within the main body, an operation part is coupled to an annular portion of the receiving part, when the bottle cap to which the operation part is coupled is disposed on the container neck to couple container neck to the main body, a distance between the operation part and the receiving part is reduced while the main body is coupled to the container neck, and the dolphin disposed in a space defined in the bottom of the operation part punches the sealing part that blocks the inner storage space in this process to allow the different kind of material stored in the storage space to drop into the broken sealing space in this process.
 13. The bottle cap of claim 12, wherein an annular rim is disposed on an upper outer annular portion of the operation part to contact an upper end of the container neck, when the main body is more coupled to the container neck in this process, a distance between the operation part and the main body is reduced in a manner in which the operation part is more fitted into the main body, and the dolphin of the operation part breaks the sealing part disposed on the lower portion of the receiving part in this process.
 14. The bottle cap of claim 12, wherein an annular rim is disposed on an upper outer annular portion of the operation part, an annular rim stopper is disposed within the main body that corresponds thereto, and the annular rim of the operation part is hung on the annular rim stopper of the main body so that the operation and the main body are integrally coupled to each other while the operation part is fitted into the inner receiving part of the main body.
 15. A bottle cap for a heterogeneous material container, the bottle cap containing a different kind of material, which is coupled in a discharging direction of the content of a container, characterized in that the bottle cap comprises a main body coupled to a neck of the container and a receiving part having a storage space that lengthily extends downward within the main body, a receiving part having a storage space is disposed on an outer annular portion of the sealing part having the opening/closing hole that lengthily extends, an operation part comprising a sealing corresponding part is coupled around the receiving part, when the bottle cap comprising the operation part is coupled to the container neck, the operation part is opposed to an upper end of the container neck of to stop, and when the main body is more coupled in this state, the sealing part of the main body gets out of the sealing corresponding part of the operation part, and simultaneously, the different kind of material stored in the storage space drops through the opening/closing hole.
 16. The bottle cap of claim 15, wherein an annular rim is disposed on an upper outer annular portion of the operation part, and when the annular rim of the operation part contacts an upper portion of the container neck and is opposed to the upper end of the container neck, the operation part is more fitted into the receiving part to allow the sealing part to get out of the sealing corresponding part in this process, thereby opening the opening/closing hole.
 17. The bottle cap of claim 15, wherein a separate opening/closing operation part for discharging the mixed contents is disposed on an upper end of the bottle cap.
 18. A bottle cap for a heterogeneous material container, the bottle cap containing a different kind of material, which is coupled in a discharging direction of the content of a container, characterized in that the bottle cap comprises a main body coupled to a neck of the container, an operation part is coupled to the inside of the main body and inserted into the container neck, a storage space is defined between the operation part and the main body, when the bottle cap comprising the operation part and the main body, which have the above-described configurations, the operation part is fixed to the container neck, when the main body rotates in this state, a cutoff line formed on the bottom of the operation part is broken while the main body moves downward with respect to the operation part to open the sealing part, a dolphin that lengthily extends is disposed on an upper portion of the sealing part, and when the dolphin contacts the bottom of the main body, the dolphin pushes the sealing part downward to allow the different kind of material stored in the storage space to drop into the container through the opened space of the sealing part.
 19. The bottle cap of claim 18, wherein an annular rim is disposed on an upper outer annular portion of the operation part and comprises an operation part induction part between an annular rim stopper of the main body or the main body corresponding to the operation part so that the operation part together with the main body is separated from the container neck in a manner in which the operation part is fitted into the operation part induction part.
 20. The bottle cap of claim 18, wherein, when the main body is coupled around the operation part, the dolphin that lengthily extends on the bottom of the main body pushes the sealing part of the operation part corresponding thereto to form the opening/closing hole. 